31
Model C723
Controls, Systems and Operations
Timers
Two Minute Stir Cycle
In STANDBY, with the standby temperature
satisfied:
The beater motor will activate for six
seconds every two minutes. If the freezing cylinder
temperature goes above the Standby Temp setpoint
before the stir cycle happens, the beater motor and
compressor will turn on.
In AUTO:
The Stir Cycle Time will correspond with
the Compressor Cycle Time. If the Compressor
Cycle Time is 5 minutes, then the Stir Cycle Time
will also be 5 minutes. If the freezing cylinder
viscosity is below the setpoint, the beater motor and
compressor will continue to run until the viscosity
setpoint has been reached.
Fan Off Delay
The main condenser fan will run for 30 seconds after
the main compressor turns off.
Manual Clean Indicator
The two-digit LED display in the user interface will
display the number of hours since the last manual
brush cleaning, starting with the next hour change
(3:00 PM, 4:00 PM, etc.).
Safety Timeout
Once power is applied to the unit, a 60 second timer
places the unit in an idle state. The alarm activates
in 0.5 second intervals, and a “Safety Timeout”
message appears on the VFD display. This timer
can be aborted by pressing any key.
Brush Clean Timer
This timer times out 5 minutes when all conditions
for a successful brush cleaning are met.
Compressor On Timer
This timer monitors the compressor run time while
the freezing cylinder temperature is below 41°F
(5°C) (MAX_NSF_BARREL_TEMP).
In AUTO, when 11 minutes have counted down:
The freezing cylinder temperature must be below
23°F (-5°C) or a fault will be generated. If a fault is
generated, the alarm sounds and the compressor is
turned off.
If the temperature is below 23°F (-5°C), the
compressor will cycle off and no fault will be
generated.
If a fault is generated, the compressor turns on
again with the next Compressor Cycle Time or with
the draw switch. Whenever the draw switch is
closed, the Compressor On Timer is reset to 11
minutes.
In STANDBY, when 11 minutes have counted
down:
If the product in the freezing cylinder is above the
Standby Temperature, a fault is generated, the
alarm sounds, and the compressor continues to run
until the Standby Temp Setpoint is satisfied.
Содержание C723
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Страница 39: ...35 Model C723 Controls Systems and Operations 140519 C723 Control Overview Figure 72 ...
Страница 41: ...37 Model C723 Controls Systems and Operations 130409 Refrigeration Schematic Figure 73 ...
Страница 52: ...48 Troubleshooting Model C723 Notes ...
Страница 55: ...51 Model C723 Parts Notes ...
Страница 56: ...52 Parts Model C723 150603 Model C723 Exploded View Figure 74 ...
Страница 59: ...55 Model C723 Parts 140519 Model C723 Operator Parts Figure 75 ...